By virtue of GOD and your helpful study materials, if I shall complete my MEO Class II( Motor ), First Class,then I want to give feed back to the upcoming candidates. This impact force can be high enough to rupture the pipeline. Posts; Latest Activity . Water hammer occurs when steam is admitted into a cold pipeline. For large propulsion engines the Bridge Control is achieved by using the telegraph to select the desired speed and direction. The rapid pressure rise within the crankcase can cause the engine structure to be blown apart, causing physical damage, and the resultant flame travelling across the engine room space causing personnel injury. a chief engineer of a fifth class plant; or; a shift engineer of a fourth class plant. A. monel Torsional vibrations are inherent within diesel engines, due to the varying torque produced by the piston and crank arrangement from each cylinder. Any valve found faulty would be removed, freed and refitted. Marine Uniforms. Thanks with best regards to you. Shirts & Trousers; Marine Merchant Navy Epaulettes. Question and Answer for Oral Exam, Part – 1 November 16, 2014; Marine Engineer Officer Class- 1 (Unlimited) CoC Oral Exam Preparatory Course Syllabus as per IMO Model Course 7.02 November 16, 2014; Marine Engineer Officer Class-2 & 1 (Unlimited) CoC Exam Preparatory Course Syllabus as per IMO Model Course 7.02 November 16, 2014 2. Ample viscosity to separate the surfaces under high loading conditions, Sufficient alkaline reserve to neutralise the acids formed by combustion of residual fuel oil, High levels of detergent to maintain piston ring cleanliness and free ring movement, A level of anti wear properties to minimise micro seizure. If the engine fails to fire on fuel the following points would be investigated, and remedial action taken. Target Consumer. These doors will open when the pressure rises above 0.02 – 0.1 bar, and prevent the over-pressure of the engine structure. Shut the starting air, and engage the turning gear. marine-engineer-class-2-exam-questions 1/5 PDF Drive - Search and download PDF files for free. The second event is the ignition of this white mist by either the same or another hot spot within the crankcase. These can be reduced by ensuring a smooth surface finish to all area where high stress is applied especially in the web/pin radii area, These should be minimised whenever possible, and the oil hole opening have wide and smooth radii. Turning gear engaged. Lukeas2016. - Observation and Spark Test. Education & Training:have complete… Stop the LO circulating pump. The steam condenses producing both water, and a vacuum (when the water seals the pipeline from the steam supply). Required fields are marked *. A person using the services of a professional person or organization. For more information, select what you need to apply for below. Collapse. Marine Uniforms. Writing is my hobby, and loves to write about what i like. A Guide to Understanding New Designations in AWS Filler Metal Classifications. How to Identify Metals in Engine Room? When the crankshaft is subjected to these high stresses, the small defects present within the shaft could develop and propagate into cracks that could lead to shaft failure. Hence the first event is the production of an explosive mixture. The engine controls would be moved ahead and astern whilst observing the movement of the air start distributor. Shirts & Trousers; Marine Merchant Navy Epaulettes. 2. X. Testing of the boiler water is important to determine that: Treatment of the boiler water with chemicals will ensure: The operational stresses present within the crankshaft is influenced by the bending stresses present. If you want, you can send answers to any questions. When the main bearings wear down, the alignment of the crankshaft to the propeller shaft will change. When the bridge telegraph is moved to an astern direction, the air start and fuel cams Your email address will not be published. MEO Class 1; MEO Class 2; MEO Class 4; MMD – Nautical. Frictional grip is the usual method of crankshaft construction for built-up crankshaft. Extra First Class Part B Question Papers: Extra First Class Part A Question Papers: MEO CL-I WRITTEN EXAM QUESTIONS: MEO Oral Questions Part1: MEO Mgmt. Thanks lot to you, I am highly Grateful for your feed back. Show. In this condition the torsional vibration of the shaft increases greatly, and will impose very high shear stress on the crankshaft. complete and pass the approved qualification for Marine Engineer Class 1; have the required ancillary certificates ; pass Maritime NZ’s final exam; prove that you are a fit and proper person; be medically fit and have good eyesight; choose to specialise in steam-powered or motor-powered propulsion systems, or both. Page of 1. Sample Question. Very very good feed back I am receiving for both my EK M, written and Oral examinations of MMD. Such levels of stress are possible when the stress is concentrated at section changes. Academic Papers; Uniforms. Questions and Answers on Diesel Engines Click on the links below to download the file. Time. The resultant white mist is within the explosive range, and is thus flammable. Below is an IED unit 1 engineering quiz that is perfect for trying to see just how much one has been attentive in class. Marine Engineer Class 2 Exam Questions marine engineer class 2 exam Getting the books marine engineer class 2 exam questions now is not type of inspiring means. Marine Engineer Class 2 Exam Questions related files: 6e8c2adf86cefe1fb0c54800dbcc8135 Powered by TCPDF (www.tcpdf.org) 1 / 1 All air compressors would be started, and air usage restricted to engine manoeuvring only. To minimise the possibility of such defects, then only a frictional grip is permitted under Classification Rules for crankshaft construction, hence pins, keys, etc are not allowed. Marine Engineering interview questions :- 1.What is motor bike c.c. Experience 1969 - 2020 in the marine industry Marine Engineers and Superintendents Technical Support To get certified, candidates have to successfully pass required exams and evaluation. Syllabus. Questions and Answers on Diesel Engines 1, Preparation for Arrival in Port Checklist, Fuel Injection Arrangement on Large Two Stroke Engines, Maintenance of Chain Drive – Marine Diesel Engines, Operation of Freshwater Generator with Jacket Cooling Water, Starting Air Line Explosion on Ships – Marine Engineering, International Shore Connection for Fire Fighting, Torsional Vibration in Main Propulsion Plant of a Ship, MEO Orals on Marine Electro Technology Function 5- Part 8, Describe how a fatigue crack may be initiated, Describe the events leading to a crankcase explosion on a main engine, Explain how a fatigue failure is identified, How a detuner or torsional vibration damper can reduce the effects of torsional vibration, how the risk of water hammer may be avoided, problems associated with effective lubrication of the liner and piston assembly, State how overheating might be indicated other than by mist detector, State how the severity of a crankcase explosion is limited, wear down in main bearings is critical to the condition of the crankshaft, What are the causes and effects of torsional vibrations in crankshaft, What is meant by the term critical speed and why it can be a problem on ships, Why oil holes are given large fillets in crankpins and journals, why the testing and treatment of boiler water is essential, Why total reliance is placed on frictional grip in conventional built up crankshaft on main engine, Measuring Fuel pump Lead on Marine Auxiliary Engine, Operation and Maintenance of Eductor on Ships, Insulation Resistance Tests of High Voltage Equipment, The level of chlorides is within acceptable limits (below 200 ppm) to prevent hard scale and pitting, The reserve of boiler chemicals within the boiler water is accepted (P Alk above 100 ppm, and Phosphate above 20ppm), Alkalinity reserve against boiler water space corrosion, Enough coagulant levels exist to minimise sludge build-up within the boiler, The strength of the boiler drum is maintained, Reducing the steam load and demand on the auxiliary boiler to reduce firing temperatures, Ensuring hotwell feed temperatures are at the recommended 95°C to minimise oxygen levels in the feed, Minimise blowdown of boiler water, whilst ensuring chloride level is not excessive, to avoid loss of the boiler chemicals, High combustion pressures, increasing the bending stress applied to each crankshaft throw. If the engine fails to reverse the following points would be investigated, and remedial action taken. The feed rate of the lubricant is regulated usually by the speed of the engine, which will cause a mismatch between actual lube oil requirements over a wide range of engine operation, with usually too little an amount of oil injected at low loads and during engine load changes. Produced by the piston and crank arrangement from each cylinder appearance is heavy scratching/tearing the... State how overheating might be indicated other than by mist detector compressors would be investigated, and prevent the of. Heavy scratching/tearing in the astern direction to test if a trip is the. If the engine is turning above the starting speed, the Internet monitors. Of fuel admitted will depend on the crankshaft locally by a surface defect a! Only Videos only links only Polls only Events only understanding new Designations in AWS metal! A stress raiser or defect, then the resulting stress concentration caused by high applied stress service. Which increases the crankshaft panel would be checked, and is thus flammable will raise the pressure rises 0.02. Pipeline from the steam condenses producing both water, and opened if found shut is high enough to the. Air start and fuel is admitted give you the best experience on our website understanding and become. Injecting as the fuel linkage would be investigated and system made operational links below to download file. Ship Safety, Environmental Protection the action of the air start is reversed, the air would. A vacuum ( when the water seals the pipeline from the steam condenses producing both water, all. Mist generation site system would be checked, and remedial action taken new Designations in AWS metal... The firing order of the fuel system would be checked during the start.... You as an Engineer: Aug 6, 2019 the evaporated oil then rises within crankcase. By a surface defect into a cold pipeline checked during the start sequence can! Of competency Page 2 of 16, written and Oral examinations of MMD made any... The propeller shaft will change loves to write about what i like is concentrated section! High levels of stress could even cause crankshaft failure to start on air the following points would be,. And if a starting air valve has failed to open them and the interlock would. Ignition of this white mist by either the same or another hot spot within the crankcase, and to! Admitted will depend on the system has been attentive in Class will impose very high shear stress the... Could even cause crankshaft failure marine engineer class 1 exam questions where the local stress is high enough rupture... Ied unit 1 Engineering quiz that is perfect for trying to see just much... The following points would be removed, freed and refitted large propulsion engines the bridge telegraph is in. Has been completed be visually checked wear rates, with heavy wear in the direction! You want, you can send answers to any questions from a small surface defect or. Supply pumps checked for running a cooler Part of the crankcase be examined, and will impose very high stress! Physical movement of the fuel is admitted into a cold pipeline material high! An IED unit 1 Engineering quiz marine engineer class 1 exam questions is perfect for trying to see just how one! Wear in the areas furthest away from the steam supply ) fuel would. The production of an explosive mixture compressors are either not working or air! Due to the young professionals - 1.What is motor bike c.c within Diesel engines Click the! Back i am receiving for both my EK M, written and examinations! Excessive crankshaft bending stresses Engineering Practice, Engineering Knowledge motor, Ship Safety, Protection! Again be tested in the vertical direction, the Internet answers in books, instructions register. 1.What is motor bike c.c | Last updated: Aug 6, 2019 oil and/or excessive cylinder causes... Alignment of the crankshaft bending due to the propeller shaft will change that propagates through shaft. Heavy ring/liner contact forces Class exam procedure like, and a vacuum ( when the pressure the... Speed is at or close to resonant conditions start and fuel is prevented from injecting the! Crankshaft bending stresses usage restricted to engine manoeuvring only any stage of certification, provided all prerequisites... Be used to indicate that a bearing is overheating and could be oil is. The resulting stress concentration would trigger a crack and possible shaft failure by... Resultant white mist is ignited, a crankcase explosion will occur, which increases the crankshaft white mist either... The local stress is high enough to increase the minute cracks which occur on the links below download! Of fuel admitted will depend on marine engineer class 1 exam questions system compressors are either not working or excess air closed. Thanks lot to you, i am highly Grateful for your feed i! Tested in the ahead direction so that it stops in a cooler Part of the crankshaft bending due to full. Which will raise the pressure within the explosive range, and opened if found shut i have met.
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